There are a number of Talents in Libram Novus #3 that state you need the Archery Talent as a Pre-requisite.
I can't seem to find an Archery Talent anywhere. There is of course the Archery Combat Style but I don't think they mean that. Could they be referring to the Talent Extraodinary Aim?
Yes, they could. In fact, they most certainly do refer to the Talent, Extraordinary Aim. In several of the beta versions of Novus, that Talent (Extraordinary Aim) was called Archery, but it was changed due to the potential confusion with the Combat Style of the same name.
Unfortunately, I apparently forgot to change the references in Libram Novus #3 (which came out BEFORE the change was made in the beta of the core rules). I will have to go back and fix that and upload a new version of the PDF to the server for folks to re-download it.